The Hobbit: What Happened To Radagast At The End Of The Third Age?

gamerant.com:

Of the three main wizards who appear in The Hobbit and the Lord of the Rings (excluding the 2 Blue Wizards, who are mentioned but don’t actually appear within either work) Radagast is probably the least well known. Saruman the White, who betrays the order of the maiar for his own selfish purposes by corrupting Isengard and building an army of orcs to try to take the ring for himself, and Gandalf the Gray (then white) who is almost the exact opposite of this and guides and protects all of the kingdoms of Middle Earth against Sauron, both play a fundamental part in deciding the future of the world.

Radagast’s part in the story, however, is far more minimal, and despite his character being extended and elaborated upon within Peter Jackson’s film adaptations ofThe Hobbit, he actually appears more in the Lord of the Rings books. All that is really told of him is that he is a loyal and trustworthy fellow, and that he favors the birds and the beasts of the world than the people and the politics, and only involves himself in affairs is specifically required to by Gandalf, who is his cousin and oldest ally. But what happens to him during the Fourth Age of Middle Earth, when Saruman has been killed by his own servant Wormtongue, and Gandalf has departed back to the Undying Lands?

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As the maiar originally came from across the sea to Middle Earth in the first place, it would be easy to assume that Radagast would want to claim a place aboard the ships sailing into the west, and return to a haven away from war and greed and suffering. But this would be forgetting that all of the things he has come to know and love, the entirety of the life that has shaped his character is